Quick-adjustable wrench



sept. 22, 1925. 1,554,966

w. H. FISHER QUICK ADJUSTABLE WRENCH Filed April 17, 1925 atto/cmq Patented Sept. 22, 1925i..

tl l itl WILLIAM n. Brenna, or aLrooNa, PENNSYLVANIA.

QUEUE-ADJUSTABLE WRENCH.

Application tiled April 17, 1925.

To all 'zo/mm it may concern.'

Be it known that l, ViTILLrAM H. FISHER, a citizen ot' the United States ot America, residing at Altoona, in the county et Blair and State of Pennsylvania, have invented new and useful Improvements in Quick- Adjustable llVrenches, ot which the following is a specilication.

lt is a purpose ot the present invention to provide, in a pipe or monkey wrench, an improved construction wherein the jaws may be quickly adjusted, one relative to the other, and when once adjusted, means is provided Jfor retaining a set of teeth carried by the handle of the wrench in engagment with corresponding teeth on the shank of one ot the jaws, thereby holding the two jaws in their adjusted posit-ions, said means being so disposed that the more pressure is exerted upon the handle, the tighter the teeth will engage or mesh to insure a firm grip on the pipe to be turned.

ltis to be understood that the particulars herein given are in no way limitative and that, while still keeping within the scope o1" the invention, any desired modifications oi detail and desired proportions may be made in the device according to the circumstances.

The invention comprises further features and combinations oi parts to be hereinafter set Alorth, shown in the drawings, and claimed.

ln the drawings:

Figure l is a view in side elevation ol the improved wrench constructed in accordance with 'the invention;

Fig. 2 is a sectional view through the same, showing the teeth ot the handle in mesh with the teeth on the shank of one ot the jaws, with a portion ot the handle in engagement with means en one off the jaws for retaining the teeth in mesh;

Fig. 3 is a. sectional view, showing the teeth on the handle out el"` mesh with the teeth on the shank ot one ot the jaws; and

Fig. lis a cross-sectional view on line 1 /l of Fig. 2.

Referring to the drawings, l designates a sliding movable jaw, the gripping face of which may be plain, as at Q in Figs. l and 2, or toothed, as at 3 in Fig. 3. This jaw has a shank l on one tace of which a longitudinal groove 5 is fori'ned. The bottom of the groove has teeth 6, and 7 denotes the opposing jaw ot the wrench. rlhis jaw is in the Serial No. 23,925.

form of a body provided with a passage or opening 8 to receive the shank et of the jaw l.

The jaw 7 has its body toward one edge chambered out or bifurcated, as at 9, for the reception ot' the end of a handle l0. The received end ot the handle on one corner thereof is of arcuate yconstruction which has teeth ll adapted to mesh at times when holding the jaws relatively xed and may be disengaged by a lateral movement of the handle, bodily relatively to the jaw 7.

The opposed walls ot the chamber or bifurcation of the body ot the jaw 7 have opposed registering slots l2 which receive a pivot pin 13 which passes through the toothed end of the handle and has its ends swaged or peened over, not enough to cause any binding between the parts but suticient to prevent longitudinal movement of the pin. By this means, the parts are pivotally united, rendering` the handle capable of pivotal movement when the teeth ot the handle and those on the shank l are out of mesh.

A portion o't the bottom wall oi the chamber vor bifurcation in the body of the jaw 7 has a curved part let and this part merges into an abrupt shoulder 15 atone end. A corner portion lG opposite the teeth ol the handle engages the abrupt shoulder l5 when the two sets oit teeth are in mesh, acting to hold the teeth in mesh and maintaining the handle substantially rigid relative to the body ot the jaw 7 so that a secure gripping action may be procured on a nut or on a section of pipe, whereby either' may be ro tated. ln the latter instance, the aw 7 may have teeth 17, as indicated in Fig. 3, just opposite to the teeth 3 of the jaw l, to further assure a lirm grip on a pipe sect-ion.

To release the teeth, it is necessary to move the handle laterally, maintaining it substantially parallel with the shank 4 oil the jaw l, allowing the pivot pin 13 to move in the elongated openings or slots, as the parts are positioned in Fig. 3. The shank 4 o'l the jaw l is then capable ot movement freely through the passage in the jaw 7 thus allowing the jaw l to be adjusted to suit any size of pipe section, nut, or the like.

The curved part of the bottom ot the chamber, when the pivot pin is moved laterally in the slots as in Fig. 3, allows the handle to swing. Furthermore, it is possible toniove the handle around a quarter turn or ninety degrees and in this way hold the teeth in mesh, as shown in, dotted lines in Fig. 2.

The invention having been set forth, what is claimed is:

l. A quick-adjustable wrench comprising a movable jaw having a` toothed shank, an opposing jaw with a passage to movably receive said shank, the opposing jaw being ehambered, the opposite walls of the chamber having parallel registering slots, a handle operatively mounted in the chamber with means slidable in the slots to guide the handle in its movement, the handle having teeth meshing with teeth on the shank, a portion ot' the bottom of the chamber having a curved part emerging into a shoulder, said ehambered housed end of the handle having a right-angled part opposite the teeth olf the handle and adapted to abut against said shoulder for holding the teeth in mesh and retaining the handle rigid with the two jaws.

2. A quick-adjustable wrench comprising a movable jaw having a toothed shank, an opposing jaw with a. passage to movably reoeive'said shank` and provided with a chamber, of which its opposite walls have parallel registering slots, a handle operatively mounted in the chamber and provided with teeth meshing with the teeth on the shank, the chamber having an interior abutting shoulder opposite the teeth of the shank, and means carried by the handle and slidable in the slots, whereby the handle may engage either with the shank or the shoulder' for causing a Close engagement of the jaws with an object to be turned.

In testimony whereo'iu I affix my signature.

WILLIAM H. FSHER. 

